// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/arguments.h"
#include "src/counters.h"
#include "src/heap/heap-inl.h" // For ToBoolean. TODO(jkummerow): Drop.
#include "src/isolate-inl.h"
#include "src/runtime/runtime-utils.h"

namespace v8 {
namespace internal {

    RUNTIME_FUNCTION(Runtime_Add)
    {
        HandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
        CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
        RETURN_RESULT_OR_FAILURE(isolate, Object::Add(isolate, lhs, rhs));
    }

    RUNTIME_FUNCTION(Runtime_Equal)
    {
        HandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
        CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
        Maybe<bool> result = Object::Equals(isolate, x, y);
        if (result.IsNothing())
            return ReadOnlyRoots(isolate).exception();
        return isolate->heap()->ToBoolean(result.FromJust());
    }

    RUNTIME_FUNCTION(Runtime_NotEqual)
    {
        HandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
        CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
        Maybe<bool> result = Object::Equals(isolate, x, y);
        if (result.IsNothing())
            return ReadOnlyRoots(isolate).exception();
        return isolate->heap()->ToBoolean(!result.FromJust());
    }

    RUNTIME_FUNCTION(Runtime_StrictEqual)
    {
        SealHandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_CHECKED(Object, x, 0);
        CONVERT_ARG_CHECKED(Object, y, 1);
        return isolate->heap()->ToBoolean(x->StrictEquals(y));
    }

    RUNTIME_FUNCTION(Runtime_StrictNotEqual)
    {
        SealHandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_CHECKED(Object, x, 0);
        CONVERT_ARG_CHECKED(Object, y, 1);
        return isolate->heap()->ToBoolean(!x->StrictEquals(y));
    }

    RUNTIME_FUNCTION(Runtime_LessThan)
    {
        HandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
        CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
        Maybe<bool> result = Object::LessThan(isolate, x, y);
        if (result.IsNothing())
            return ReadOnlyRoots(isolate).exception();
        return isolate->heap()->ToBoolean(result.FromJust());
    }

    RUNTIME_FUNCTION(Runtime_GreaterThan)
    {
        HandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
        CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
        Maybe<bool> result = Object::GreaterThan(isolate, x, y);
        if (result.IsNothing())
            return ReadOnlyRoots(isolate).exception();
        return isolate->heap()->ToBoolean(result.FromJust());
    }

    RUNTIME_FUNCTION(Runtime_LessThanOrEqual)
    {
        HandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
        CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
        Maybe<bool> result = Object::LessThanOrEqual(isolate, x, y);
        if (result.IsNothing())
            return ReadOnlyRoots(isolate).exception();
        return isolate->heap()->ToBoolean(result.FromJust());
    }

    RUNTIME_FUNCTION(Runtime_GreaterThanOrEqual)
    {
        HandleScope scope(isolate);
        DCHECK_EQ(2, args.length());
        CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
        CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
        Maybe<bool> result = Object::GreaterThanOrEqual(isolate, x, y);
        if (result.IsNothing())
            return ReadOnlyRoots(isolate).exception();
        return isolate->heap()->ToBoolean(result.FromJust());
    }

} // namespace internal
} // namespace v8
